Struggling to delete nodes from a Binary Search Tree correctly? Confused about leaf deletion, one child case, or two children case with inorder successor? This video will make BST deletion crystal clear.

Welcome to The Techzeen. In this practical DSA tutorial I implement and explain BST deletion in Java step by step with diagrams and dry runs so you can confidently handle every interview question.

In this video you will learn
* How to search and locate the node to delete in BST
* Case 1 Delete leaf node with no children and why it is simple removal
* Case 2 Delete node with one child and how to reconnect the child with parent
* Case 3 Delete node with two children using inorder successor (findMin) and why we copy and delete successor
* Recursive implementation explained line by line and the findMin helper logic
* Time complexity analysis Average O(log n) and Worst O(n) with explanation why unbalanced tree behaves like a list
* Edge cases handling like empty tree and value not found
* Interview tips on how to explain deletion verbally with diagram

All code is explained clearly in IntelliJ IDEA with diagrams for each case. Follow along, pause and code with me to master BST deletion.

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Source Code:
https://github.com/farzeen-ali/DSA-Concepts-The-Techzeen-2025

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